﻿using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Model
{
    public class Ret
    {
        public string Name;
        public void RefDemo()
        {
            int age = 1;
            RefDemo2(ref age);

            Console.WriteLine(age);

            string num = "0";
            int num_int = 0;

            int.TryParse(num, out num_int);
        }
        public void RefDemo2(ref int age)
        {
            age+= 10;
        }
    }
}
